EP 3462113 A3 20190626 - MULTIPLE PRESSURE MIXED REFRIGERANT COOLING PROCESS
Title (en)
MULTIPLE PRESSURE MIXED REFRIGERANT COOLING PROCESS
Title (de)
VERFAHREN ZUR KÜHLUNG EINES GEMISCHTEN KÜHLMITTELS MIT MEHREREN DRÜCKEN
Title (fr)
MULTIPLES PROCESSUS DE REFROIDISSEMENT DE RÉFRIGÉRANT MIXTE DE PRESSION
Publication
Application
Priority
US 201715718068 A 20170928
Abstract (en)
Systems and methods described for increasing capacity and efficiency of natural gas liquefaction processes having a mixed refrigerant precooling system with multiple pressure levels comprising cooling the compressed mixed refrigerant stream and separating the cooled compressed mixed refrigerant stream into a vapor and liquid portion. The liquid portion provides refrigeration duty to a first precooling heat exchanger. The vapor portion is further compressed, cooled, and condensed, and used to provide refrigeration duty to a second precooling heat exchanger. A flash gas separated from the liquefied natural gas is warmed and combined with the natural gas feed stream.
IPC 8 full level
CPC (source: CN EP KR RU US)
F25J 1/0022 (2013.01 - EP KR RU US); F25J 1/004 (2013.01 - KR); F25J 1/0052 (2013.01 - EP RU US); F25J 1/0055 (2013.01 - EP RU US); F25J 1/006 (2013.01 - RU US); F25J 1/0205 (2013.01 - KR); F25J 1/0211 (2013.01 - RU US); F25J 1/0212 (2013.01 - CN RU); F25J 1/0219 (2013.01 - EP RU US); F25J 1/0257 (2013.01 - RU US); F25J 1/0262 (2013.01 - KR); F25J 1/0267 (2013.01 - EP RU US); F25J 1/0291 (2013.01 - EP RU US); F25J 1/0292 (2013.01 - EP RU US); F25J 1/0294 (2013.01 - EP RU US); F25J 2215/04 (2013.01 - KR); F25J 2220/62 (2013.01 - EP US)
Citation (search report)
- [Y] US 4229195 A 19801021 - FOERG WOLFGANG G
- [Y] US 4525185 A 19850625 - NEWTON CHARLES L [US]
- [Y] EP 1092932 A1 20010418 - AIR PROD & CHEM [US]
- [Y] FR 2967484 A1 20120518 - TOTAL SA [FR]
- [Y] PIERRE RABEAU ET AL: "HOW TO REDUCE CO2 EMISSIONS IN THE LNG CHAIN", vol. 15th, 24 April 2007 (2007-04-24), pages PS2 - 7/1, XP009108458, Retrieved from the Internet <URL:http://www.kgu.or.kr/admin/data/P-000/7fbdbf394154a1168c5f52dd3caaf11e.pdf>
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3462113 A2 20190403; EP 3462113 A3 20190626; AU 2018233054 A1 20190411; AU 2018233054 B2 20200716; CA 3018237 A1 20190328; CA 3018237 C 20210202; CN 109579430 A 20190405; CN 109579430 B 20210305; JP 2019066165 A 20190425; JP 6725616 B2 20200722; KR 102162369 B1 20201006; KR 20190037147 A 20190405; RU 2018133711 A 20200325; RU 2018133711 A3 20200325; RU 2749405 C2 20210609; US 10753676 B2 20200825; US 2019093946 A1 20190328
DOCDB simple family (application)
EP 18197762 A 20180928; AU 2018233054 A 20180924; CA 3018237 A 20180924; CN 201811142888 A 20180928; JP 2018178683 A 20180925; KR 20180114922 A 20180927; RU 2018133711 A 20180925; US 201715718068 A 20170928